JP2011038399A - Material displacement device for displacing material, and wear member and connector assembly for constituting the same - Google Patents

Material displacement device for displacing material, and wear member and connector assembly for constituting the same Download PDF

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JP2011038399A
JP2011038399A JP2010232330A JP2010232330A JP2011038399A JP 2011038399 A JP2011038399 A JP 2011038399A JP 2010232330 A JP2010232330 A JP 2010232330A JP 2010232330 A JP2010232330 A JP 2010232330A JP 2011038399 A JP2011038399 A JP 2011038399A
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connector
wear member
axis
opening
extending
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JP5242657B2 (en
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John A Ruvang
ジョン、エイ．ルバング
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GH Hensley Industries Inc
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Hensley Industries Inc
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2883—Wear elements for buckets or implements in general

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Earth Drilling (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an improved excavating blade connector device associated with a device for removably connecting a replaceable excavating blade edge to an adapter nose structure. <P>SOLUTION: The replaceable excavating blade edge 12 is fitted around an adapter nose 24, and is removably retained by a connector member 60. The connector member 60 extends through longitudinally aligned blade edge connector openings 44, 46 and a connector opening 56 so as to prevent the blade edge 12 from dropping forward off the adapter nose 24. A transverse blade edge wall abutting surface 50 facing one end 74/66 of the attached connector member 60 prevents its outward movement through the one opening 46 out of the blade edge connector openings. In addition, a rotatable lock member 62, which is supported by the other end 72/64 of the connector member 60, and can be releasably engageable with a groove in the other blade edge connector opening 44, prevents the connector member 60 from moving outwardly through the blade edge connector opening 44. A detent structure 90 releasably holds the lock member 62 in a locking position and an unlocking position. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、全般的に材料変位装置に関し、特にその好ましい実施例において、関連付けられているアダプタノーズ構造に、交換可能な掘削刃先を着脱自在に接続する装置に関する。   The present invention relates generally to a material displacement device, and in particular in its preferred embodiment, to an apparatus for removably connecting a replaceable excavation cutting edge to an associated adapter nose structure.

様々なタイプの材料変位装置には、大きなベース構造によって着脱自在に支持されるとともに、変位させる材料と接触してすり減り、摩耗する、交換可能な部分が設けられている。例えば、掘削用バケット等の掘削機器に設けられる掘削刃組立体は、典型的に、前側のバケットリップに適切に固定されるとともに、減少させた断面積を有した前方に突出するノーズ部分を有する比較的大きなアダプタと、このアダプタのノーズ部分を受け入れるポケット開口がその後端を貫通するように形成されている交換可能な刃先とを備えている。アダプタノーズ上に刃先を捕捉的に保持するために、これらの相互に係合可能な要素を貫通する互いに芯合わせされた横方向の開口を刃先の後端に隣接させて形成するとともに、これらの芯合わせされた開口内に適切なコネクタ構造を押し込んで強制的に保持し、関連付けられているアダプタノーズ部分上に交換可能な刃先を着脱自在に固定するようになっている。   Various types of material displacement devices are provided with replaceable parts that are detachably supported by a large base structure and wear and wear in contact with the material to be displaced. For example, a drilling blade assembly provided in a drilling device, such as a drilling bucket, typically has a forward protruding nose portion that is properly secured to the front bucket lip and has a reduced cross-sectional area. A relatively large adapter and a replaceable cutting edge formed with a pocket opening through its rear end for receiving the nose portion of the adapter. To capture and hold the cutting edge on the adapter nose, a laterally centered lateral opening through these mutually engageable elements is formed adjacent the trailing edge of the cutting edge and these An appropriate connector structure is pushed into and forcedly held in the centered opening, and a replaceable cutting edge is detachably fixed on the associated adapter nose portion.

刃先およびアダプタノーズの芯合わせされた開口内に押し込まれるように適合されたコネクタ構造には、典型的に、（１）くさびとスプールコネクタとの組み合わせ、および（２）たわみピンコネクタの２つの主要な形態がある。くさびとスプールの組み合わせは、刃先およびアダプタノーズの芯合わせされた開口内に最初に配置されるテーパ状のスプール部分と、その後でこのスプール部分を背にしつつ開口内に打ち込まれて、開口の内側表面に大きくて強固な保持力を作用させ、ノーズ部分を押圧して刃先ポケットに対して締まり嵌めさせ、開口内の所定位置にこの構造を固定するテーパ状のくさび部分と、を備える。   Connector structures adapted to be pushed into the centered openings of the cutting edge and adapter nose typically include (1) a wedge and spool connector combination, and (2) a flexible pin connector. There are various forms. The wedge and spool combination consists of a tapered spool portion initially placed in the centered opening of the cutting edge and adapter nose, and then driven into the opening with this spool portion in the back, inside the opening. A taper wedge portion that applies a large and strong holding force to the surface, presses the nose portion to make an interference fit with the blade pocket, and fixes the structure at a predetermined position in the opening.

鋼鉄製のくさびを挿入し、後から取り外すためには、極めて高い打ち込み力およ叩き出し力が求められ、典型的に、くさびを叩いて出し入れするために２人の作業者の労力、すなわち一方がくさびの端部に取り外し工具を保持し、他方が大型ハンマで取り外し工具を打撃する必要がある。このことは、金属の細片を飛散させ、あるいはまた他方の作業者が取り外し工具ではなくて一方の作業者を大型ハンマで叩く可能性があり、安全性に問題がある。加えて、掘削のために刃先を使用している間における刃先／アダプタノーズ間の境界面の摩耗は、刃先およびアダプタノーズの開口内におけるくさび／スプール構造の締まり嵌めを緩くする傾向があり、それによってくさび／スプール構造が開口から抜け出し、したがって刃先がアダプタノーズから脱落することになる。   Inserting a steel wedge and removing it later requires a very high driving force and punching force, and typically the labor of two workers, ie one of them, to tap the wedge in and out. It is necessary to hold the removal tool at the end of the wedge and hit the removal tool with a large hammer on the other side. This may cause metal strips to be scattered, or the other worker may hit one worker with a large hammer instead of the removal tool, which is a safety problem. In addition, wear of the interface between the cutting edge / adapter nose during use of the cutting edge for excavation tends to loosen the wedge / spool structure interference fit within the opening of the cutting edge and adapter nose, which This causes the wedge / spool structure to slip out of the opening so that the cutting edge falls off the adapter nose.

たわみピン構造は、典型的に、それらの間に結合されたエラストマ材料によって間隔を開けて横並びに保持された２つの細長い金属部材を備える。このたわみピン構造は、刃先およびアダプタノーズの開口内へと長手方向に打ち込まれると、エラストマ材料に圧縮が生じて刃先およびアダプタノーズの開口に金属部材を弾性的に押圧し、このコネクタ構造を開口内の所定位置に保持するとともに、アダプタノーズ部分を弾性的に押圧して刃先ポケットの内面ときつく締まり嵌め係合させる。   A flexible pin structure typically comprises two elongated metal members that are held side by side by an elastomeric material bonded therebetween. When this flexible pin structure is driven into the opening of the blade edge and adapter nose in the longitudinal direction, the elastomer material is compressed and the metal member is elastically pressed against the opening of the blade edge and the adapter nose to open the connector structure. The adapter nose portion is elastically pressed and tightly engaged with the inner surface of the cutting edge pocket.

たわみピンもまた短所を有している。例えば、くさび／スプール構造に比較すると、所定位置に保持する力が実質的に低い。加えて、刃先上に反対方向の荷重が作用すると刃先およびアダプタノーズの開口内に隙間が生じ、それを介して埃が刃先ポケット内に入るため、刃先／アダプタノーズの境界面における摩耗を望ましくなく加速させ、それに対応してコネクタの保持力を緩める。さらに、たわみピンコネクタに典型的に使用されるエラストマ材料は、高熱、低温および酸性の動作環境による劣化に不可避的にさらされる。そのうえ、くさび／スプールおよびたわみピンの両コネクタは、それらの関連付けられたコネクタ構造の取付けを受け入れるために、刃先およびアダプタノーズ部分に比較的正確な製造寸法公差を必要とする。   Flexible pins also have disadvantages. For example, compared to a wedge / spool structure, the force holding in place is substantially lower. In addition, when loads in the opposite direction act on the cutting edge, gaps are created in the opening of the cutting edge and the adapter nose, through which dust enters the cutting edge pocket, which may cause undesirable wear on the cutting edge / adapter nose interface. Accelerate and correspondingly loosen the connector holding force. Furthermore, the elastomeric materials typically used in flexible pin connectors are inevitably exposed to degradation due to high heat, low temperature and acidic operating environments. In addition, both wedge / spool and flex pin connectors require relatively accurate manufacturing dimensional tolerances on the cutting edge and adapter nose portion to accept attachment of their associated connector structure.

掘削刃先／アダプタ組立体における、コネクタに起因したこれらの様々な問題、制約および短所に対して提案された解決策は、刃先およびアダプタノーズの芯合わせされた相補的なテーパ形状を有している開口内に挿入されるくさび形コネクタ部材が、コネクタ部材に支持されたロック部材により刃先およびアダプタノーズに対して長手方向の「締め付け」方向に弾性的に付勢されるようにすることであった。このロック部材は、コネクタ部材の端部に回転自在にかつ密封的に受け入れられ、刃先の一部分に当接し、コネクタ部材から外側へと長手方向にばね付勢されている。このくさび形タイプのコネクタ構造の実施例は、Ｒｕｖａｎｇへの米国特許第６，１０８、９５０号に図示されかつ説明されている。   The proposed solution to these various problems, limitations and disadvantages due to connectors in the drilling edge / adapter assembly has a complementary tapered shape centered on the cutting edge and adapter nose. The wedge-shaped connector member inserted into the opening was elastically biased in the longitudinal “tightening” direction with respect to the blade edge and the adapter nose by the lock member supported by the connector member. . The lock member is rotatably and hermetically received at the end of the connector member, abuts against a portion of the blade edge, and is spring-biased outward from the connector member. An example of this wedge-type connector structure is shown and described in US Pat. No. 6,108,950 to Ruwang.

この特別なくさび形タイプのコネクタ構造は、従来のたわみピンおよびくさび／スプールコネクタの組に関連して上述した様々な問題、制約および短所を少なくとも実質的に減少させる。しかしながら、それは、それ独自のいくつかの制約を有している。例えば、コネクタ部材のくさび形状のために、コネクタ部材に作用する掘削負荷がコネクタ部材上にその軸線方向の力の成分を発生させ、ある種の事例においてはロック部材を損傷させ、刃先およびアダプタノーズの開口からコネクタ部材が追い出されるようにする。そのうえ、ばね付勢されているロック部材がコネクタ部材に対して出入りすることができるので、コネクタ／ロック部材の境界面領域内に埃が引き込まれ、ロック部材によって支持されているシールを実質的に劣化させる。さらに、（例えば、コネクタ構造の全体が使用前に保存されるときに）長期間にわたってロック部材がそのアンロック位置に維持されると、ロック部材回り止め部分のエラストマ製部分が圧縮状態に維持され、好ましくない圧縮永久ひずみが生じることになる。   This special wedge-type connector structure at least substantially reduces the various problems, limitations and disadvantages described above in connection with conventional flex pin and wedge / spool connector pairs. However, it has some limitations of its own. For example, because of the wedge shape of the connector member, a digging load acting on the connector member generates a component of its axial force on the connector member, which in some cases can damage the locking member, cutting edge and adapter nose The connector member is ejected from the opening. In addition, since the spring biased locking member can enter and exit the connector member, dust is drawn into the interface area of the connector / locking member to substantially seal the seal supported by the locking member. Deteriorate. Further, if the locking member is maintained in its unlocked position for an extended period of time (eg when the entire connector structure is stored prior to use), the elastomeric portion of the locking member detent portion is maintained in a compressed state. Undesirable compression set will occur.

上述したことから判るように、従来の掘削刃および上述した一般的なタイプの材料変位装置コネクタに付随する上述した問題、制約および短所を取り除き、あるいは少なくとも実質的に減少させる、改良された掘削刃コネクタ装置を提供することが望ましい。   As can be seen from the foregoing, an improved drilling blade that eliminates or at least substantially reduces the above-mentioned problems, limitations and disadvantages associated with conventional drilling blades and the general types of material displacement device connectors described above. It is desirable to provide a connector device.

本発明の原理を実行するに際して、代表的に例示された実施例によると、掘削摩耗部材、典型的には交換可能な刃先を支持構造、典型的にはアダプタノーズに着脱自在に保持するために、特別に設計されたコネクタ組立体が用いられる。   In practicing the principles of the present invention, according to an exemplary embodiment, the excavating wear member, typically a replaceable cutting edge, is detachably retained in a support structure, typically an adapter nose. A specially designed connector assembly is used.

このコネクタ組立体は、代表的に例示された実施例において、（１）軸線に沿って延びるとともに、対向する第１および第２の端部間に延びつつ軸線と平行な関係においてこの軸線を囲む平坦な外側側面周辺部分を有する、細長くて平坦なコネクタ部材、および（２）コネクタ部材の第１の端部内に回動自在に受け入れられるとともに、その係止タブ部分がコネクタ部材の側面周辺部分を超えて横方向外側に突出するロック位置とロックタブがコネクタ部材の側面周辺部分を超えて横方向外側に突出しないアンロック位置との間で回動可能なロック部材、を備える。   In the exemplary embodiment illustrated, the connector assembly extends (1) along an axis and surrounds the axis in a relationship parallel to the axis while extending between opposing first and second ends. An elongate flat connector member having a flat outer side peripheral portion, and (2) pivotally received within the first end of the connector member, the locking tab portion of the connector member receiving the side peripheral portion of the connector member. A locking member that can be pivoted between a locking position that protrudes outward in the lateral direction beyond the locking tab and an unlocking position in which the locking tab does not protrude laterally outward beyond the peripheral portion of the side surface of the connector member.

コネクタ部材の内側にある回り止め構造は、そのロック位置およびアンロック位置のうちのいずれか選択された位置にロック部材を着脱自在に保持する。ロック部材には、そのロック位置およびアンロック位置のいずれにおいても、コネクタ部材の長さ方向に平行な弾性力が負荷されることはない。また、回り止め構造は、ロック部材がそのロック位置およびアンロック位置のどちらにあっても、ロック部材とコネクタ部材との、コネクタ部材の軸線に平行な、認め得る程度のあらゆる相対運動を実質的に阻止する。この回り止め構造は、典型的に、ロック部材に支持されるとともに関連付けられた弾性部分を有している強固な回り止め部材と、ロック部材がそのロック位置およびアンロック位置にあるときにこの回り止め部材をそれぞれ受け入れる、コネクタ部材の内側に円周方向に間隔を開けて配置された第１および第２の回り止め開口とを有している。この回り止め構造の弾性部分は、ロック部材がそのロック位置およびアンロック位置のいずれにあっても、本質的に弛緩した状態にある。   The detent structure inside the connector member detachably holds the lock member at a position selected from either the locked position or the unlocked position. The locking member is not subjected to an elastic force parallel to the length direction of the connector member at either the locked position or the unlocked position. The detent structure substantially prevents any appreciable relative movement between the locking member and the connector member parallel to the axis of the connector member, regardless of whether the locking member is in its locked position or unlocked position. To stop. The detent structure typically includes a rigid detent member that is supported by and associated with an elastic portion, and the detent structure when the lock member is in its locked and unlocked positions. First and second detent openings are disposed on the inner side of the connector member and spaced circumferentially apart to receive the respective detent members. The elastic portion of the detent structure is essentially relaxed regardless of whether the locking member is in its locked position or unlocked position.

アダプタノーズ上に刃先を外嵌し、アダプタノーズを横断する方向に貫通して延びているコネクタ開口に刃先の側壁コネクタ開口を芯合わせし、ロック部材そのアンロック位置におき、コネクタ部材の両端が刃先の両コネクタ開口内に配置されるまでこのコネクタ組立体をコネクタ開口内に挿入することにより、刃先のアダプタノーズから前方への離脱が阻止される。次いで、ロック部材をそのロック位置に回動させる。これがなされた後は、刃先／アダプタ組立体の内側の当接面領域は、取り付けられたコネクタ組立体がいずれかの刃先コネクタ開口を通って外側に移動することを防止する。典型的に、これらの当接面領域は、（１）刃先の側壁の２つのコネクタ開口のうち第１のコネクタ開口の凹所の内側側面に画成されて、ロックタブしたがってコネクタ組立体の全体が刃先の第１コネクタ開口を通って外側に移動することを防止する第１の当接面、および（２）刃先の側壁部分に形成されて第２のコネクタ開口内に延び、刃先の第１のコネクタ開口に対してその断面積を減少させ、かつ取り付けられたコネクタ組立体がこの第２のコネクタ開口を通って外側に移動することを防止する第２の当接面、を有する。   The blade tip is fitted on the adapter nose, the side wall connector opening of the blade edge is aligned with the connector opening extending through the adapter nose, and the lock member is placed in the unlocked position. By inserting the connector assembly into the connector opening until it is disposed in both connector openings of the blade edge, the blade edge is prevented from being removed forward from the adapter nose. Next, the lock member is rotated to the lock position. Once this is done, the inner abutment surface area of the cutting edge / adapter assembly prevents the attached connector assembly from moving outwardly through any of the cutting edge connector openings. Typically, these abutment surface areas are defined on the inner side of the recess of the first connector opening of the two connector openings on the sidewall of the cutting edge so that the locking tab and thus the entire connector assembly is A first abutment surface for preventing outward movement through the first connector opening of the cutting edge, and (2) formed on the side wall portion of the cutting edge and extending into the second connector opening, the first of the cutting edge A second abutment surface that reduces its cross-sectional area relative to the connector opening and prevents the attached connector assembly from moving outwardly through the second connector opening;

本発明の原理を具現化している、特別に設計された回動自在なロックコネクタ構造を取り入れた、掘削刃先／アダプタ組立体の長手方向に短縮した水平断面図。FIG. 4 is a longitudinal cross-sectional view shortened in the longitudinal direction of a digging blade / adapter assembly incorporating a specially designed pivotable locking connector structure embodying the principles of the present invention. 図１中の破断線２−２に沿った断面図。Sectional drawing along the broken line 2-2 in FIG. その回動自在なロック部分が図２に示したロック位置にあるコネクタ構造の上面図。FIG. 3 is a top view of the connector structure in which the rotatable lock portion is in the lock position shown in FIG. 2. その回動自在なロック部分がアンロック位置にあるコネクタ構造の上面図。The top view of the connector structure in which the rotatable lock part is in an unlock position. コネクタ構造を模式的に拡大して示す図２中の破断線５−５に沿った断面図。Sectional drawing along the broken line 5-5 in FIG. 2 which expands and shows a connector structure typically.

代表的な実施例を長手方向に短縮した形の断面図として図１および図２に示したように、本発明は掘削刃先／アダプタ組立体１０を提供する。この組立体１０は、軸線１４に沿って前方から後方へと延びるとともに前側部分１６および後側部分１８を有する、交換可能な細長い中空の刃先１２の形態の摩耗部材；より小さい断面形状のノーズ部２４がそこから前方へと突出するベース部１１を有したアダプタ２０の形態の支持構造；および、この明細書において後述するようにアダプタノーズ２４上に刃先１２を着脱自在に保持するために用いる、特別に設計された、回転自在にロック可能なコネクタ組立体２６を備えている。   As shown in FIGS. 1 and 2 as a cross-sectional view of a representative embodiment in a longitudinally shortened form, the present invention provides a drilling edge / adapter assembly 10. The assembly 10 includes a wear member in the form of a replaceable elongated hollow cutting edge 12 that extends from front to back along an axis 14 and has a front portion 16 and a rear portion 18; a smaller cross-sectional nose portion A support structure in the form of an adapter 20 having a base 11 from which 24 projects forward; and, as will be described later in this specification, used to detachably hold the cutting edge 12 on an adapter nose 24; A specially designed, rotatably lockable connector assembly 26 is provided.

典型的に、刃先１２およびアダプタ２０は、本発明の譲受人と同じ譲受人に譲渡されて２００１年４月２７日に出願された、米国特許出願０９／８４３６８１号に図示され説明されている刃先およびそれに関連付けられたアダプタと同様な構成を有している。しかしながら、刃先１２およびアダプタ２０は、本発明の原理から逸脱することなく、様々な代わりの形状を有することができる。加えて、本発明は、代表的な支持構造としてのアダプタおよびこの支持構造によって支持される代表的な摩耗部材としての刃先に関連して使用されるものとしてこの明細書に図示されかつ説明されているが、その原理から逸脱することなく異なるタイプの支持構造および関連付けられた摩耗部材に用い得ることは、この特定の技術分野の当業者が容易に理解するところである。例えば、それには限定されないが、アダプタ２０はその後端がベースアダプタに接続された中間アダプタとすることができ、かつ刃先１２はその上に交換可能な刃先が取り付けられる前端部を有した中間アダプタとすることができる。   Typically, the cutting edge 12 and adapter 20 are shown and described in US patent application Ser. No. 09/843681, filed Apr. 27, 2001, assigned to the same assignee as the present assignee. It has the same configuration as the adapter associated therewith. However, the cutting edge 12 and adapter 20 can have a variety of alternative shapes without departing from the principles of the present invention. In addition, the present invention is illustrated and described herein as used in connection with an adapter as a representative support structure and a cutting edge as a representative wear member supported by the support structure. However, it will be readily appreciated by those skilled in the art that it can be used with different types of support structures and associated wear members without departing from the principles thereof. For example, but not limited thereto, the adapter 20 can be an intermediate adapter whose rear end is connected to the base adapter, and the cutting edge 12 is an intermediate adapter having a front end on which a replaceable cutting edge is mounted. can do.

ここで図１および図２を参照すると、刃先１２は、ポケット３０がそこから刃先１２の内部へと前方に延びる、凹状に湾曲した後端表面部分２８を有している。図１から最も良く判るように、ポケット３０は、刃先１２の内部へのその前側の入口から湾曲した後端表面部分２８を通って、前側および垂直方向内側へとテーパ状であり、かつ互いに対向する概ね水平な上側表面部分３２および底側表面部分３４を具備した断面積の小さい安定的な前端部を有している。   Referring now to FIGS. 1 and 2, the cutting edge 12 has a concavely curved rear end surface portion 28 from which a pocket 30 extends forward into the interior of the cutting edge 12. As best seen in FIG. 1, the pocket 30 tapers from the front entrance into the cutting edge 12 through the curved rear end surface portion 28 to the front and vertically inward and oppose each other. And a stable front end having a small cross-sectional area with a generally horizontal upper surface portion 32 and a bottom surface portion 34.

ポケット３０は、互いに対向する一組の上側側壁３６および下側側壁３８と、刃先１２の湾曲した後端面２８において後方に向かって終端する互いに対向した一組の側壁４０，４２とを、刃先１２に画成している。上側側壁３６および下側側壁３８の後方かつ垂直方向に末広がりの後方端部３６ａ，３８ａは、刃先の湾曲した後方端面２８を過ぎて後方に向かって延びている。芯合わせされたコネクタ開口４４、４６は、刃先の側壁４０，４２を通ってポケット３０内へとそれぞれ内側に延びるとともに、軸線１４を横断する方向の軸線４８に沿って間隔を開けて配置されている。図２に最も良く示されているように、側壁４２の一部４２ａはコネクタ開口４２を横切って後方に延び、他のコネクタ開口４４の断面積に比較してその断面積を減少させている。   The pocket 30 includes a pair of upper side walls 36 and a lower side wall 38 that face each other, and a pair of side walls 40 and 42 that face each other at the curved rear end face 28 of the blade edge 12 and end in the rearward direction. It is defined in. The rear end portions 36a, 38a, which extend rearward and vertically in the rear side of the upper side wall 36 and the lower side wall 38, extend rearward past the curved rear end surface 28 of the blade edge. The centered connector openings 44, 46 extend inwardly into the pocket 30 through the cutting edge side walls 40, 42 and are spaced apart along an axis 48 in a direction transverse to the axis 14. Yes. As best shown in FIG. 2, a portion 42 a of the side wall 42 extends rearward across the connector opening 42 and reduces its cross-sectional area relative to the cross-sectional area of the other connector openings 44.

この明細書において後述する目的のために、側壁の一部４２ａ（図２参照）が有している内側凹部は、軸線４８を横断するとともにポケット領域３０に対向する内側当接面５０をこの側壁の一部４２ａに画成している。加えて、図２に示されているように、コネクタ開口４４の内壁面は、側壁４０の外側表面に向かって内側へと円周方向に延びる、その内部に形成された凹部５２を有している。この凹部５２は、ポケット３０の内側に開口するとともに、（図２に示したようにその上側に）軸線４８を横断する方向の当接面５４を有している。   For purposes described later in this specification, the inner recess of the side wall portion 42a (see FIG. 2) has an inner abutment surface 50 that intersects the axis 48 and faces the pocket region 30. It is defined in a part 42a. In addition, as shown in FIG. 2, the inner wall surface of the connector opening 44 has a recess 52 formed therein that extends inwardly toward the outer surface of the side wall 40. Yes. The recess 52 opens to the inside of the pocket 30 and has an abutment surface 54 in a direction crossing the axis 48 (on the upper side as shown in FIG. 2).

アダプタノーズ２４は、刃先ポケット３０と相補的であって着脱自在に受け入れられ、かつ軸線４８と平行にそこを貫通して延びる、刃先コネクタ開口４４、４６に芯合わせされたコネクタ開口５６を有している。アダプタベース２２は、アダプタノーズ２４の後端に外接する凸状に湾曲した前面５８を有しており、かつ刃先１２の凹状の後端面部分２８と相補的でスライド自在に係合可能である。図１および図２に示したように、アダプタノーズ２４が刃先ポケット３０内に着脱自在に受けられると、刃先１２の後方端部３６ａ、３６ｂはアダプタベース２２の上側側面および下側側面部分を保護するように重なる。   The adapter nose 24 has a connector opening 56 that is complementary to the cutting edge pocket 30 and is removably received and extends therethrough parallel to the axis 48 and centered on the cutting edge connector openings 44, 46. ing. The adapter base 22 has a convexly curved front surface 58 circumscribing the rear end of the adapter nose 24, and is complementary and slidably engageable with the concave rear end surface portion 28 of the cutting edge 12. As shown in FIGS. 1 and 2, when the adapter nose 24 is detachably received in the blade pocket 30, the rear ends 36 a and 36 b of the blade 12 protect the upper side surface and the lower side surface portion of the adapter base 22. Overlapping to do.

ここで図１〜図４を参照すると、コネクタ組立体２６は、細長く平坦なコネクタ部材６０とロック部材６２とを有している。コネクタ部材６０は、互いに対向する端部６４，６６と、軸線１４と平行な方向において細長い、その長さに沿ってテーパ状な断面形状と、互いに対向する前側および後側の長手方向側縁６８，７０と、側縁６８，７０から横方向内側に延びるとともに長手方向に入り込んだ端面７２，７４をコネクタ部材６０の互いに対向する隅角部に画成する隅角の凹部領域とを有している。平坦なコネクタ部材６０の外側長手方向に延びる周辺側面７６は、コネクタ部材の軸線を取り囲むとともに、それに対してテーパ状であるのではなくそれに対して平行である。   1 to 4, the connector assembly 26 includes an elongated flat connector member 60 and a lock member 62. The connector member 60 has end portions 64 and 66 facing each other, an elongated shape in a direction parallel to the axis 14, and a tapered cross-sectional shape along the length thereof, and front and rear longitudinal side edges 68 facing each other. , 70 and corner recesses that extend inward in the lateral direction from the side edges 68 and 70 and that define end faces 72 and 74 that enter the longitudinal direction at mutually opposite corners of the connector member 60. Yes. The outer longitudinally extending peripheral side surface 76 of the flat connector member 60 surrounds the connector member axis and is parallel to it rather than tapered.

円形の孔あるいは開口７８は、コネクタ部材６０の入り込んだ端面７２を通って長手方向内側に延びるとともに、その内側側面に形成された回り止め凹部領域を有している。好ましくは、図５に最も良く示されているように、この回り止め凹部領域は、円周方向に９０度離れているとともに開口７８と長手方向に芯合わせされた２つの回り止め凹部８０、８２を有している。   The circular hole or opening 78 extends inward in the longitudinal direction through the end surface 72 into which the connector member 60 is inserted, and has a detent recess region formed on the inner side surface thereof. Preferably, as best shown in FIG. 5, this anti-rotation recess region is two anti-rotation recesses 80, 82 that are 90 degrees circumferentially spaced and centered longitudinally with the opening 78. have.

ロック部材６２は、細長い円柱状の本体８４を有しており、その長手方向の下側部分は（図２に示したように）コネクタ部材の開口７８と同軸にかつ回転自在に受け入れられ、本体８４の上端部はコネクタ部材の挿入された端面部分７２から外側に突出している。横方向に延びるロックタブ８６がロック部材の本体８４の露出した上端部に固定され、かつ開口７８の内側にある本体８４の下側部分は、その外側表面を通って半径方向内側に延びる横方向の回り止め凹部８８を有している。図５に模式的な断面図として描かれているように、回り止め構造９０は、回り止め凹部８８に受け入れられ、かつ典型的に、半径方向内側のエラストマ製の回り止め部分９４に取り付けられた半径方向外側の金属製回り止め部材９２を備えている。この回り止め部材９２は、エラストマ製の回り止め部分９４の弾性反力に対して凹部８８内へと半径方向に押し込まれ、凹部８８から外側に突出するように弾性的に付勢されている。   The locking member 62 has an elongated cylindrical body 84 whose longitudinal lower portion is coaxially and rotatably received by the connector member opening 78 (as shown in FIG. 2) The upper end of 84 protrudes outward from the end surface portion 72 into which the connector member is inserted. A laterally extending locking tab 86 is secured to the exposed upper end of the locking member body 84, and a lower portion of the body 84 inside the opening 78 is a laterally extending radially inward through its outer surface. A rotation stopper 88 is provided. As depicted in a schematic cross-sectional view in FIG. 5, the detent structure 90 is received in a detent recess 88 and is typically attached to a radially inner detent portion 94 made of elastomer. A metal anti-rotation member 92 on the radially outer side is provided. The anti-rotation member 92 is elastically biased so as to be pushed radially into the concave portion 88 against the elastic reaction force of the anti-rotation portion 94 made of elastomer and protrude outward from the concave portion 88.

非円形の駆動構造９６（例えば、六角形あるいは正方形のヘッド部）は、ロックタブ８６から上方に突出し、（１）図１〜図３に示したようにロックタブ８６がコネクタ部材６０の外側周辺側面７６を越えて横方向外側に突出するロック位置と、（２）図４に示したようにロックタブ８６がコネクタ部材６０の外側周辺側面７６を越えて横方向外側に突出しないアンロック位置との間で、ロック部材６２を強制的に回動させるために用いる適切な駆動工具（図示せず）と係合することができる。駆動構造９６は、もちろん、必要に応じて、非円形の凹部、溝付き領域、あるいは類似のものといった様々な代わりの構造とすることができる。   A non-circular drive structure 96 (e.g., a hexagonal or square head) protrudes upward from the lock tab 86, and (1) the lock tab 86 is the outer peripheral side surface 76 of the connector member 60 as shown in FIGS. Between the locking position where the locking tab 86 protrudes laterally outward beyond (2) and the unlocking position where the locking tab 86 does not protrude laterally outward beyond the outer peripheral side surface 76 of the connector member 60 as shown in FIG. , Can be engaged with a suitable drive tool (not shown) used to force the locking member 62 to rotate. The drive structure 96 can of course be various alternative structures, such as non-circular recesses, grooved areas, or the like, as desired.

ロック部材６２をそのロック位置に回動させると、回り止め部材９２がコネクタ部材の回り止め凹部８０の内側にぱちんと嵌り込んでエラストマ製の回り止め部分９４を本質的に弛緩した状態とし、ロック部材６２をそのロック位置に係脱自在に保持する。その後、ロック部材６２をそのロック位置からそのアンロック位置へと回動させると、回り止め部材９２はロック部材の回り止め凹部８８内に押し込まれ、次いでコネクタ部材の回り止め凹部８２内へとぱちんと突出し、エラストマ製回り止め部分９４を本質的に弛緩した状態とし、ロック部材６２をそのアンロック位置に係脱自在に保持する。   When the lock member 62 is rotated to its locked position, the rotation prevention member 92 fits inside the rotation prevention recess 80 of the connector member so that the rotation prevention portion 94 made of elastomer is essentially relaxed. 62 is releasably held in its locked position. Thereafter, when the lock member 62 is rotated from its locked position to its unlocked position, the detent member 92 is pushed into the detent recess 88 of the lock member and then snaps into the detent recess 82 of the connector member. It protrudes and the elastomeric detent portion 94 is essentially relaxed, and the lock member 62 is releasably held in its unlocked position.

その後、ロック部材６２を回動させてそのアンロック位置からそのロック位置へと戻すと、もちろん、回り止め部材９２は同様に作動する。ロック部材の本体８４には、ロックタブ８６とロック部材の回り止め凹部８８との間で、環状の弾性シール部材９８（図２参照）が同軸に取り囲むように支持され、かつコネクタ部材の開口７８の内側側面と摺動するように係合し、刃先アダプタ組立体１０を使用する間に埃および他の摩耗物質がコネクタ部材６０の内部に入ることを防止している。   Thereafter, when the lock member 62 is rotated and returned from the unlocked position to the locked position, of course, the rotation preventing member 92 operates similarly. An annular elastic seal member 98 (see FIG. 2) is supported on the lock member main body 84 so as to be coaxially surrounded between the lock tab 86 and the rotation stopper recess 88 of the lock member. It is slidably engaged with the inner side surface to prevent dust and other wear materials from entering the connector member 60 during use of the blade adapter assembly 10.

図２から最も良く判るように、コネクタ部材の内側の回り止め凹部８０、８２の鉛直方向の高さは（図２に示されるように）回り止め部材９２の高さと実質的に同一である。したがって、回り止め部材９２とこれらの回り止め凹部８０、８２との間の相互作用は、ロック部材６２がそのロック位置およびアンロック位置のいずれにあっても、コネクタ部材６０とロック部材６２との間の相対的な長手方向の動きを実質的に阻止する。   As best seen in FIG. 2, the vertical height of the anti-rotation recesses 80, 82 inside the connector member is substantially the same as the height of the anti-rotation member 92 (as shown in FIG. 2). Therefore, the interaction between the anti-rotation member 92 and the anti-rotation recesses 80 and 82 is such that the connector member 60 and the lock member 62 can be operated regardless of whether the lock member 62 is in the locked position or the unlock position. Substantially preventing relative longitudinal movement therebetween.

図２に示したように刃先１２をアダプタノーズ２４上へと後方に向かって外嵌し、まず最初にロック部材６２をそのアンロック位置に回転させてコネクタ組立体２６を作動的に組み立て、次いでコネクタ組立体２６のコネクタ端部６６を先頭にして（図２に示したように）芯合わせされているコネクタ開口４４、５６、４６内へと下方に挿入すると、コネクタ部材６０の前縁６８が前方に対向する結果、コネクタ部材６０はノーズコネクタ開口５６内に相補的に受容され、かつコネクタ部材６０の当接表面７４が刃先の当接面５０に接触する。このようにコネクタ組立体２６を挿入した状態においては、コネクタ部材６０の対向端部６４、６６が刃先コネクタ開口４４、４６内へとそれぞれ延びており、それによって取り付けられた刃先１２がアダプタノーズ２４から前方に離脱することを阻止する。   As shown in FIG. 2, the blade edge 12 is fitted outwardly onto the adapter nose 24, and first the lock member 62 is rotated to its unlocked position to operatively assemble the connector assembly 26, and then When inserted downward into the connector openings 44, 56, 46 centered (as shown in FIG. 2) with the connector end 66 of the connector assembly 26 leading, the leading edge 68 of the connector member 60 is As a result of facing forward, the connector member 60 is complementarily received in the nose connector opening 56 and the abutment surface 74 of the connector member 60 contacts the abutment surface 50 of the cutting edge. In this state where the connector assembly 26 is inserted, the opposite end portions 64, 66 of the connector member 60 extend into the blade edge connector openings 44, 46, respectively, and the blade edge 12 attached thereby becomes the adapter nose 24. To prevent them from moving forward.

次いで、図２から最も良く判るように、単にロック部材６２をそのアンロック位置からそのロック位置へと回動させ、ロックタブ８６を刃先凹部６２に入り込ませて関連付けられている当接面５４と対向させることにより、挿入されたコネクタ組立体２６は、この阻止状態において係脱自在に係止される。したがって、コネクタ部材の端部６６に隣接している協働当接面５０、７４は、コネクタ組立体２６が刃先コネクタ開口４６を通って外側に抜け出ることを防止し、かつ協働当接面５４、７２は、コネクタ組立体２６が刃先のコネクタ開口４４を通って外側に抜け出ることを防止する。   Then, as best seen in FIG. 2, the locking member 62 is simply rotated from its unlocked position to its locked position, and the locking tab 86 enters the blade edge recess 62 to face the associated abutment surface 54. By doing so, the inserted connector assembly 26 is detachably locked in this blocked state. Thus, the cooperating abutment surfaces 50, 74 adjacent the connector member end 66 prevent the connector assembly 26 from exiting outwardly through the cutting edge connector opening 46 and the cooperating abutment surface 54. 72 prevent the connector assembly 26 from slipping out through the connector opening 44 in the cutting edge.

代表的に図示された刃先／アダプタ組立体１０の内部の当接面構造、すなわち当接面の組５０、７４および５４，７２は、本発明の原理から逸脱することなく様々に変更することができる。例えば、それには限定されないが、刃先の当接面５０はアダプタノーズ２４の内側に移転することができる（したがって、対応するコネクタ部材の当接面もこのアダプタノーズの当接面と対向させるために移転する）。別の例として、それには限定されないが、（図２に示されている）下側の当接面の組５０、７４を取り除くとともに、ロック位置にあるロックタブ８６の互いに対向する両側面と対向する２つの対向当接面を有するように刃先の凹部５２を変更し、コネクタ組立体２６が刃先のコネクタ開口４４、４６のいずれかを通って長手方向外側に移動することを防止する役割を果たすようにすることもできる。   The abutment surface structure, ie, abutment surface pairs 50, 74 and 54, 72, within the blade edge / adapter assembly 10 as shown in the figure can be varied in many ways without departing from the principles of the present invention. it can. For example, without limitation, the abutment surface 50 of the cutting edge can be transferred to the inside of the adapter nose 24 (so that the abutment surface of the corresponding connector member is also opposed to the abutment surface of the adapter nose). Move). As another example, but not limited to, the lower set of abutment surfaces 50, 74 (shown in FIG. 2) is removed and opposed to opposite sides of the locking tab 86 in the locked position. The cutting edge recess 52 is modified to have two opposing abutment surfaces so as to prevent the connector assembly 26 from moving longitudinally outward through either of the cutting edge connector openings 44, 46. It can also be.

コネクタ部材６０の外側周辺側面７６が軸線４８と平行であるので、刃先／アダプタ組立体１０上の運転荷重が、コネクタ開口４４、４６、５６から追い出そうとするとともにロック部材６２上にかなりの力を作用させる長手方向の大きな荷重を、コネクタ部材６０に負荷することはない。さらに、コネクタ組立体２６は、コネクタ開口内に打ち込む必要性なしに取り付けることができる。これにより、必要とされる「打ち込み」空間が無いため、２つ若しくはそれ以上の組立体１０をより接近させて配置することができる。また、コネクタ組立体２６における回り止め構造は、刃先／アダプタ組立体１０を使用する間におけるコネクタ部材６０とロック部材６２との間の相対的な長手方向の動きを実質的に防止するので、コネクタ部材６０の内部への埃および他の摩耗物質の入り込み、およびそれに伴う内側の弾性シール部材９８の劣化が実質的に減少する。加えて、ロック部材回り止め構造の弾性部分は、ロック部材がアンロック位置にあるときに本質的に弛緩した状態にあるので、ロック部材がアンロック位置にある状態でコネクタ組立体が長く貯蔵されることに起因するこの弾性係合部分の好ましくない「圧縮永久ひずみ」は実質的に排除される。   Because the outer peripheral side 76 of the connector member 60 is parallel to the axis 48, the operating load on the cutting edge / adapter assembly 10 tends to drive out of the connector openings 44, 46, 56 and exerts considerable force on the locking member 62. A large longitudinal load to be applied is not applied to the connector member 60. Further, the connector assembly 26 can be installed without the need to drive into the connector opening. This allows two or more assemblies 10 to be placed closer together because there is no required “driving” space. Also, the detent structure in the connector assembly 26 substantially prevents relative longitudinal movement between the connector member 60 and the locking member 62 during use of the cutting edge / adapter assembly 10, so that the connector The entry of dust and other wear material into the interior of the member 60 and the associated degradation of the inner elastic seal member 98 is substantially reduced. In addition, the elastic portion of the locking member detent structure is essentially relaxed when the locking member is in the unlocked position, so that the connector assembly is stored longer with the locking member in the unlocked position. This undesired “compression set” of the elastically engaging portion is substantially eliminated.

前述した詳細な説明は、図示および例証のためにのみ与えられたものと明確に理解されるべきであり、本発明の趣旨および範囲は添付の請求の範囲によってのみ限定される。   It should be clearly understood that the foregoing detailed description has been given by way of illustration and illustration only, the spirit and scope of the present invention being limited only by the appended claims.

Claims (5)

材料を変位させるための装置である材料変位装置において、
第１軸に沿って前方に延びる前側部分を有するとともに、前記第１軸を横断する方向の第２軸に沿って貫通して延びるコネクタ開口を有した支持構造と、
後方に向かって前記前側部分上に外嵌され、変位させる材料と接触して摩耗する交換可能な摩耗部材であって、前記前側部分のコネクタ開口と芯合わせされた互いに対向する第１および第２のコネクタ開口を有する摩耗部材と、
前記摩耗部材を前記前側部分上に着脱自在に保持しているコネクタ組立体と、
を備え、
前記コネクタ組立体が、
前記支持構造のコネクタ開口および前記摩耗部材の前記第１および第２のコネクタ開口を通って長手方向に延びるとともに前記支持構造の前記コネクタ開口および前記摩耗部材の前記第１および第２のコネクタ開口内に前記第２軸に沿って着脱自在に受け入れられて前記摩耗部材が前記支持構造の前記前側部分から離脱することを防止する細長いコネクタ部材であって、前記摩耗部材の前記第１および第２のコネクタ開口内にそれぞれ受け入れられる第１および第２の端部を有し、かつ、前記第１および第２の端部の間で長手方向に延びる外側周辺表面部分を有し、この外側周辺表面部分が前記第２軸と平行であってかつ前記第２軸の周りを囲んでいる、コネクタ部材と、
前記コネクタ部材の第１の端部によって回動自在に支持されるロック部材と、
前記第２軸を横断する方向に延びて、前記ロック部材、したがって前記コネクタ部材が前記摩耗部材の第１のコネクタ開口を通って外側に通過することを防止する、前記材料変位装置の内側に配設された第１の当接面と、
前記第２軸を横断する方向に延びて、前記コネクタ部材が前記摩耗部材の第２のコネクタ開口を通って外側に通過することを防止する、前記材料変位装置の内側に配設された第２の当接面と、
を有していることを特徴とする材料変位装置。 In a material displacement device that is a device for displacing a material,
A support structure having a front portion extending forward along a first axis and having a connector opening extending therethrough along a second axis in a direction transverse to the first axis;
A replaceable wear member externally fitted onto the front portion toward the rear and worn in contact with the material to be displaced, the first and second facing each other centered with the connector opening of the front portion A wear member having a connector opening;
A connector assembly removably holding the wear member on the front portion;
With
The connector assembly comprises:
Extending longitudinally through the connector opening of the support structure and the first and second connector openings of the wear member and in the first and second connector openings of the support structure and the wear member An elongated connector member that is removably received along the second axis to prevent the wear member from detaching from the front portion of the support structure, the first and second of the wear member The outer peripheral surface portion having first and second ends respectively received in the connector opening and extending longitudinally between the first and second ends. A connector member parallel to the second axis and surrounding the second axis;
A locking member rotatably supported by the first end of the connector member;
Extending inside the material displacement device extending in a direction transverse to the second axis and preventing the locking member and thus the connector member from passing outwardly through the first connector opening of the wear member. A first contact surface provided;
A second disposed inside the material displacement device extending in a direction transverse to the second axis and preventing the connector member from passing outwardly through the second connector opening of the wear member. A contact surface of
A material displacement device characterized by comprising: 前記支持構造は湾曲した前面を有するベース部を有しており、この前面から前記支持構造の前記前側部分が前方に突出しており、
前記摩耗部材は湾曲した後端表面部分を有しており、この後端表面部分から前記ポケット領域が前方に延びており、
前記支持構造の前記前側部分は前記摩耗部材の前記ポケット領域内に相補的に受け入れられており、
前記摩耗部材は、互いに対向する第１および第２の側壁部分と、これら第１および第２の側壁部分を横断する方向に延びるとともに互いに対向する第３および第４の側壁部分とを有しており、前記第１および第２の側壁部分を前記第１および第２のコネクタ開口が通過しており、前記第３および第４の側壁部分は前記摩耗部材の湾曲した前記後端表面部分を過ぎて後方に延びている、
ことを特徴とする請求項１に記載の材料変位装置。 The support structure has a base portion having a curved front surface, and the front portion of the support structure projects forward from the front surface;
The wear member has a curved rear end surface portion, and the pocket region extends forward from the rear end surface portion;
The front portion of the support structure is complementarily received in the pocket region of the wear member;
The wear member includes first and second side wall portions facing each other, and third and fourth side wall portions extending in a direction transverse to the first and second side wall portions and facing each other. The first and second connector openings pass through the first and second side wall portions, and the third and fourth side wall portions pass the curved rear end surface portion of the wear member. Extending backwards,
The material displacement device according to claim 1, wherein: 前記ベース部の前面が凸状に湾曲し、かつ前記摩耗部材の後端表面部分が凹状に湾曲していることを特徴とする請求項２に記載の材料変位装置。   The material displacement device according to claim 2, wherein a front surface of the base portion is curved in a convex shape, and a rear end surface portion of the wear member is curved in a concave shape. 請求項１に記載の材料変位装置を構成するためのコネクタ組立体において、
前記支持構造のコネクタ開口および前記摩耗部材の前記第１および第２のコネクタ開口を通って長手方向に延びるとともに前記支持構造の前記コネクタ開口および前記摩耗部材の前記第１および第２のコネクタ開口内に前記第２軸に沿って着脱自在に受け入れられて前記摩耗部材が前記支持構造の前記前側部分から離脱することを防止する細長いコネクタ部材であって、前記摩耗部材の前記第１および第２のコネクタ開口内にそれぞれ受け入れられる第１および第２の端部を有し、かつ、前記第１および第２の端部の間で長手方向に延びる外側周辺表面部分を有し、この外側周辺表面部分が前記第２軸と平行であってかつ前記第２軸の周りを囲んでいる、コネクタ部材と、
前記コネクタ部材の第１の端部によって回動自在に支持されるロック部材と、
前記第２軸を横断する方向に延びて、前記ロック部材、したがって前記コネクタ部材が前記摩耗部材の第１のコネクタ開口を通って外側に通過することを防止する、前記材料変位装置の内側に配設された第１の当接面と、
前記第２軸を横断する方向に延びて、前記コネクタ部材が前記摩耗部材の第２のコネクタ開口を通って外側に通過することを防止する、前記材料変位装置の内側に配設された第２の当接面と、
を有していることを特徴とするコネクタ組立体。 In the connector assembly for comprising the material displacement device according to claim 1,
Extending longitudinally through the connector opening of the support structure and the first and second connector openings of the wear member and in the first and second connector openings of the support structure and the wear member An elongated connector member that is removably received along the second axis to prevent the wear member from detaching from the front portion of the support structure, the first and second of the wear member The outer peripheral surface portion having first and second ends respectively received in the connector opening and extending longitudinally between the first and second ends. A connector member parallel to the second axis and surrounding the second axis;
A locking member rotatably supported by the first end of the connector member;
Extending inside the material displacement device extending in a direction transverse to the second axis and preventing the locking member and thus the connector member from passing outwardly through the first connector opening of the wear member. A first contact surface provided;
A second disposed inside the material displacement device extending in a direction transverse to the second axis and preventing the connector member from passing outwardly through the second connector opening of the wear member. A contact surface of
A connector assembly comprising: 請求項１に記載の材料変位装置を構成するための摩耗部材において、
前端部と、
前記第１軸に沿って前記前端部から間隔を開けて配置された後端部と、
前記後端部から前方に延びるポケット領域と、
前記ポケット領域の前記第２軸方向の両側を区画するように互いに対向して配置された第１および第２の側壁部分と、
前記第１軸を横断する方向の第２軸に沿って間隔を開けて配置され、前記第１および第２の側壁部分を通って前記ポケット領域内に開口する、芯合わせされた第１および第２のコネクタ開口と、を備え、
前記第２の側壁部分は、前記第２のコネクタ開口の断面積を減ずるように前記第２のコネクタ開口内に突出する部分を有しており、前記突出する部分は前記コネクタ組立体の前記第２の当接面と当接する当接面を有しており、前記突出する部分を設けたことによって前記第２のコネクタ開口の軸方向外側部分が前記第２軸に対して前記第２軸を横断する方向に心ずれしていることを特徴とする摩耗部材。 In the wear member for constituting the material displacement device according to claim 1,
The front end,
A rear end disposed at a distance from the front end along the first axis;
A pocket region extending forward from the rear end;
First and second side wall portions arranged to face each other so as to define both sides of the pocket region in the second axial direction;
Centered first and first spaced apart along a second axis transverse to the first axis and opening into the pocket region through the first and second sidewall portions. Two connector openings,
The second side wall portion has a portion protruding into the second connector opening so as to reduce a cross-sectional area of the second connector opening, and the protruding portion is the first portion of the connector assembly. A contact surface that contacts the second contact surface, and the projecting portion is provided so that the axially outer portion of the second connector opening moves the second shaft relative to the second shaft. A wear member characterized by being misaligned in a transverse direction.
JP2010232330A 2002-11-04 2010-10-15 Material displacement device for displacing material, and wear member and connector assembly for constituting material displacement device Expired - Lifetime JP5242657B2 (en)

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CA2504770A1 (en) 2004-05-21
EP1592849B1 (en) 2010-05-05

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